OREANDA-NEWS. The official purchase prices at cash calculations on the London Metal Exchange on March 21, 2007 made $2 780 for a ton of aluminium, $6 685 for a ton of copper, $1 940 for a ton of lead, $47 100 for a ton of nickel, $13 995 for a ton of tin, $3 189,5 for a ton of zinc.

Three-month purchase contracts were made at the price of $2 778 for a ton of aluminium, $6 620 for a ton of copper, $1 910 for a ton of lead, $43 900 for a ton of nickel, $13 845 for a ton of tin, $3 180 for a ton of zinc.